package com.iot.practice.designpattern.state.pattern;

/**
 * <p>Context 此类用于：</p>
 * <p>@author：hujm</p>
 * <p>@date：2021年03月22日 16:45</p>
 * <p>@remark：</p>
 */
public class Context {

    /**
     * 定义出所有的电梯状态
     */
    public final static OpenningState openningState = new OpenningState();
    public final static ClosingState closingState = new ClosingState();
    public final static RunningState runningState = new RunningState();
    public final static StoppingState stoppingState = new StoppingState();

    /**
     * 定一个当前电梯状态
     */
    private LiftState liftState;

    public LiftState getLiftState() {
        return liftState;
    }

    public void setLiftState(LiftState liftState) {
        this.liftState = liftState;
        // 把当前的环境通知到各个实现类中
        this.liftState.setContext(this);
    }

    public void open() {
        this.liftState.open();
    }

    public void close() {
        this.liftState.close();
    }

    public void run() {
        this.liftState.run();
    }

    public void stop() {
        this.liftState.stop();
    }
}
